Finger nail polisher



June 16, r1931. A c; J. Fol-:Rsxa-.R` 1,810,701

FINGER NAIL POLISHER Filed Aug.I 28, 1930 Patented `lune 16, 1931 UNITEDsrras CHARLES J. FOIERSTER, OF NEWTON, MASSACHUSETTS umana NAIL ,PoLI'srixIrnt;L

, Application inea August 28,1930. y,serial no. Masas, i

This invention relates to apparatus for plishing or brushing iingernails, and pertains more particularly to improvements in devices of thetype described and claimed in my copending application Serial No.395,709, tiled September 27, 1929. `Said application discloses improvedapparatus automatically operated toreciprocate a brush or other polishing device over the nail of a finger which rests upon a supportcomprising a pivoted rest normally urged upwardly by a suitable spring,the polishing tool being reciprocated by an electric motor or otherdriving means.

The present invention has for its principal object the provision' of animproved type of finger rest which is provided with a switch orclosingan electric circuit connected with the driving motor, whereby the motoris started by placing the finger on the rest.

A recommended embodiment of the invention is illus-tratedfin theaccompanying drawings, in which: Y

Fig.v 1 is a side view of the improved apparatus, with certain partsshown in section;

Fig. 2 is an enlarged sectional view of the finger rest and switch; and

Figs. 3 and 4 are sections taken on lines 3 3 and 4.-4respectivelyof-Fig. 2. n

The apparatus comprises a base 1, having a casing 2 mounted thereon; anelectric motor of any usualtype housed within the casing and having a.shaft 4 provided with an ec'- centric member or cam 5; a plunger 6reciprocable within a bearing 7 supported within the casing andprojecting therefrom, one end of the plunger having a head 8 held inoperative relation to the cam 5 by means -ofa helical spring 9, and theopposite Yend of the if plunger having an axial recess tightlyreceiving` the reduced end 26 of a removable polish-k ing or buiiingtool 1() which has a plurality of brushing, polishing or sandingymembers aiixed to its respective sides. Said members may include abrush 11,v a ling or sanding element 12, and a buii'er 13.

A casing 14 of insulating material is mounted upon the base 1 beneaththe polishing too-l, and a stem or plunger 15 is journaled forvverticalmovement in said casing. The upper end of the sternerrtends outwardly ofthecasing 'andis provided'with a finger rest 16 disposed inproximityto'the bottom face oi the tool; and theibaseof the stem has' apair of connected spring clips 17 extending upwardlyand'outwardlytoward.the casing y14. A 55 coiled spring 18" interposedbetween thebase of the stem and the bottom vvofthe casing nor- ]iallyurges the stemupwardly as shown in kA pair'of spaced contacts 19 aremounted so within the casing in the-path of movement of the conductingclips 17, and said contacts are connected through terminals 20 and acable 21 in the circuit of the motor 3, which is supplied' with electriclcurrent from a suitable 65 source. lThe clips or conductors 17 and thecontacts 19-thus constitute a normally openk switch (owingto the actionof the spring 18) which is closed when the stem is moved downwardly byplacing aiinger on the rest 16 70 to carry the conductors 17 intosliding engagement with the contacts 19; Such sliding contact allows thestem to be depressed a substantial distance while maintaining thecontact and holding the electrical circuit closed to operate the motor.1'

'Thus the closing of the switch by placing Y the yfinger to be polishedupon the finger rest n 16 closes the motor circuit, the shaft 4 and its.ca-m5 are rotated, the plunger 6 is recipro- 80 v cated, and thepolishing member is moved across the linger nail. When the nail issuiciently polished and the finger is removed from the rest, the switchis opened automatically by the spring 18. Hence any possibility that themotor will be left running when the apparatusfis not in use is avoided.

Iclaimf Y t, i i

1; Apparatusy of the class described com# 90 prising areciprocablepolishing tool, an electri'c motor operatively connected tothe tool,

means for reciprocating the tool upon operationof the motor, a fingerrest mounted beneath thetool, yielding means normally urging the resttowardk the tool, and a' switch connected inthe circuit of the motor andactuable upon depression of the rest against said yielding means forclosing said circuit to A start .the motor, the switch being opened bysaid yielding means when the finger is removed from the rest.

2. Apparatus of the class described comprising a reciprocable polishingtool, an electric motor operatively connected to the tool, means forreciprocating the tool upon operation of the motor, a casing mountedbeneath the tool, a stem movable through said casing and having a fingerrest at its upper end normally disposed adjacent the tool, a spring insaid casing bearing .against the lower .end of the stem and tending tomove the stem upwardly, and switch members carried by the stem and thecasing respectively, yone of said members being connected in the circuitof `the `motor,said switch members being mutu- .ally'engagednpondepression of .the stem by placing a-nger on the rest to close saidcircuit .and start the :mot-or, the switch being opened by said springwhen the yfinger' is removed.A o

In testimony whereof I .aix my signature.

.. CHARLES J. iFOERSTER.

